How to Create an ASC 842 Lease Accounting Project Plan

Build an ASC 842 lease accounting implementation project plan with a timeline covering lease population, classification, ROU asset calculation, and system setup.

How to Create an ASC 842 Lease Accounting Project Plan

ASC 842 Is Not Just a Real Estate Problem

The most common mistake in ASC 842 implementations is treating it as a real estate project. Finance pulls a list of office leases, sends it to the lease accounting software vendor, and considers the population complete.

Then the auditors ask about the forklift fleet. And the copier contracts. And the data center colocation agreements. And the embedded leases in the manufacturing service contracts.

ASC 842 requires recognizing right-of-use (ROU) assets and lease liabilities for any contract — regardless of label — that conveys the right to control the use of an identified asset for a period of time. That includes equipment leases, vehicle fleets, IT hardware agreements, and service contracts that contain a lease component. The lease population exercise is the hardest part of the implementation, and companies consistently underestimate it.


Phase 1: Lease Population and Inventory (Weeks 1–4)

Contract inventory:

Pull contracts from every source:

Do not rely on what's in the existing fixed asset or lease schedule. Pull the contracts themselves and review them.

Embedded lease screening:

Service contracts may contain an embedded lease if the contract:

Common embedded lease examples:

Screen contracts above a materiality threshold (e.g., all contracts over $100K annually) for embedded leases. Document your screening conclusions.

Practical expedient elections (make these decisions early):


Phase 2: Lease Classification and Measurement (Weeks 4–7)

Classification test (for each lease):

A lease is classified as a finance lease (similar to old capital lease) if any of the following apply:

  1. Ownership transfers to lessee at end of lease term
  2. Lessee has a purchase option reasonably certain to be exercised
  3. Lease term is for the major part of the remaining economic life of the asset (≥75% is a common threshold)
  4. Present value of lease payments is substantially all of the fair value of the asset (≥90% is common)
  5. Asset is specialized — no alternative use to the lessor

All other leases are operating leases.

Measurement (for each lease):

Opening entries:

This calculation must be done for every in-scope lease. With 50 leases it's manageable in a spreadsheet; with 500 leases you need lease accounting software.


Phase 3: System Selection and Configuration (Weeks 6–12)

When to use lease accounting software:

Software options:

Configuration tasks:


Phase 4: Opening Balance Calculation (Weeks 10–14)

Transition approach options:

Transition date calculations:

Review transition calculations with external auditors before booking. The transition entry is a one-time, high-visibility balance sheet change that auditors scrutinize.


Phase 5: Disclosure Preparation (Weeks 14–16)

ASC 842 requires significantly more disclosure than ASC 840.

Required disclosures:

Build disclosure templates before go-live so the data requirements are clear when configuring the lease accounting system.


Phase 6: Ongoing Lease Management

ASC 842 is not a one-time project — it requires ongoing processes:

Manage your ASC 842 implementation project in gantt-chart.io with the lease population exercise as Phase 1 and a clear dependency: system configuration cannot begin until the population is complete and the practical expedient elections are made. The phases that follow — classification, measurement, system setup, and disclosure — all build on the population inventory. Getting the population wrong means redoing everything downstream.